File content as of revision 3:fbd4b164e8ad:

#include "EthernetInterface.h"
#include "ConfigFile.h"
#include "mbed.h"

//Serial avec le Xbee
DigitalOut reset(p8);
Serial uart(p13, p14);  // tx, rx
uint16_t frameSize = 0;

//Serial avec le PC
Serial pc(USBTX, USBRX); // tx, rx

//Socket Buffer
TCPSocketConnection sock;
uint8_t buffer[104] = { 0 };
char serverAddrvalue[32];
uint16_t portNo = 0;
char portNbValue[4];

bool boolLED = false; 

//Union créée pour mettre deux 8 bits en un 16 bits.
uint16_t getLength(uint8_t value1, uint8_t value2) {
    union {
        uint16_t u16_value;
        uint8_t  u8_value[2];
    } length;

    length.u8_value[1] = value1;
    length.u8_value[0] = value2;

    return length.u16_value;
}

void toogleLED() {
    
    //Numéro 64 bit = 00 13 A2 00 40 8B 41 6E
    //uint8_t high[20] = {0x7E, 0x00, 0x10, 0x17, 0x00, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x05, 0x3D};
    //uint8_t low[20]  = {0x7E, 0x00, 0x10, 0x17, 0x00, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x04, 0x3E};
    uint8_t high[20] = {0x7E, 0x00, 0x10, 0x17, 0x01, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x05, 0x3C};
    uint8_t low[20]  = {0x7E, 0x00, 0x10, 0x17, 0x02, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x04, 0x3C};

    for(int i = 0; i < 20;) {
        if(uart.writeable()) {
            if(boolLED) uart.putc(high[i]);
            else uart.putc(low[i]);
            i++; 
        }   
    }
    
    if(boolLED) pc.printf("Et un haut!\n");
    else pc.printf("Et un bas!\n");
    
    boolLED = !boolLED;
}

//Read the config file
void readConfigFile()
{
    LocalFileSystem local("local");
    ConfigFile cfg;
    char *serverAddr = "serverAddr";
    char *tempPortNo = "portNb";
    if (!cfg.read("/local/input.cfg")) error("Erreur dans la lecture du fichier\n");
    else
    {
        cfg.getValue(serverAddr, &serverAddrvalue[0], sizeof(serverAddrvalue));
        cfg.getValue(tempPortNo, &portNbValue[0], sizeof(portNbValue));
        portNo = (uint16_t)strtol(portNbValue, NULL, 10);
    }
}

void initSocket()
{
    //int repSize;
    //while (true) {

        //sprintf (buffer, (const char *)uart.getc());
        //sock.send_all(buffer, sizeof(buffer)-1);
    
        //repSize = sock.receive(buffer, sizeof(buffer)-1);
       // if (repSize <= 0) {
       //     printf("Error");
       //     sock.close();
       //     break;
     //   }
        //buffer[repSize] = '\0';
        //printf("Received %d chars from server:\n%s\n", repSize, buffer);
    //}
}

void checkForError()
{
    if(buffer[0] == 0x97) {
        if(buffer[1] == 0x02) {
            pc.printf("Erreur dans la remote AT command pour mettre la DEL a l'etat bas.\n");
        }
        else if(buffer[1] == 0x01) {
            pc.printf("Erreur dans la remote AT command pour mettre la DEL a l'etat haut\n");
        }
    }
}

void verifyChecksum()
{
    //Je valide le checksum pour voir si tout est correct.
    uint32_t checkSum = 0;
    for(int i = 0; i < frameSize; i++) {
        checkSum += buffer[i];
    }
    if((0xFF - (checkSum & 0xFF)) != buffer[frameSize])
        pc.printf("Erreur dans le checksum. \n");
        
    checkForError();
}

void readFrame(){
    
    uint8_t temp[2] = { 0 };
    if(uart.readable() && uart.getc() == 0x7E) {
         
        //On ramasse la taille de la trame
        for(int i = 0; i < 2;) 
        {
            if(uart.readable()) {
                temp[i] = uart.getc();
                i++;
            }
        }
        frameSize = getLength(temp[0], temp[1]);
         
        //Je lis le restant de la tramme et la met dans un buffer
        for(int j = 0; j < frameSize + 1;) 
        {
            if(uart.readable()) {
                buffer[j] = uart.getc();
                j++;
            }
        }
        verifyChecksum();
        //Debug seulement
        for(int k = 0; k < frameSize; k++)
            pc.printf("%X-", buffer[k]);
        pc.printf("\n---------------\n");
    }
}

int main() {
    
    reset = 0;
    wait(0.4);
    reset = 1;
    
    readConfigFile();
    
    //Init RJ45 and use DHCP
    EthernetInterface eth;
    if(eth.init() != 0)
        pc.printf("Erreur d'initialisation du RJ45.\n");
    if(eth.connect() != 0)
        pc.printf("Erreur de connection du RJ45\n"); 

    //Init Socket
    if(sock.connect(serverAddrvalue, portNo) != 0)
        pc.printf("Erreur de socket.\n");

    //sock.send_all(buffer, sizeof(buffer)-1);
    
    //initSocket();
    
    //Set ticker to blink LED at each 1 sec
    //Ticker blinkLED;
   // blinkLED.attach(&toogleLED, 1);
    
    pc.printf("Pret a recevoir des trames! \n");
    while(1) {
        readFrame();
        wait_ms(1000);
        toogleLED();
    }
}